Adair, A.Boulahouache, C.Cuplov, V.Ecklund, K.M.Geurts, F.J.M.Padley, B.P.Redjimi, R.Roberts, J.Zabel, J.2015-09-032015-09-032012Adair, A., Boulahouache, C., Cuplov, V., et al.. "Search for Dark Matter and Large Extra Dimensions in pp Collisions Yielding a Photon and Missing Transverse Energy." <i>Physical Review Letters,</i> 108, no. 26 (2012) American Physical Society: 261803. http://dx.doi.org/10.1103/PhysRevLett.108.261803.https://hdl.handle.net/1911/81621Results are presented from a search for new physics in the final state containing a photon (γ) and missing transverse energy (E̸T). The data correspond to an integrated luminosity of 5.0  fb−1 collected in pp collisions at √s=7  TeV by the CMS experiment. The observed event yield agrees with standard-model expectations for the γ+E̸T events. Using models for the production of dark-matter particles (χ), we set 90% confidence level (C.L.) upper limits of 13.6–15.4 fb on χ production in the γ+E̸T state. These provide the most sensitive upper limits for spin-dependent χ-nucleon scattering for χ masses (Mχ) between 1 and 100 GeV. For spin-independent contributions, the present limits are extended to Mχ<3.5  GeV. For models with 3–6 large extra dimensions, our data exclude extra-dimensional Planck scales between 1.64 and 1.73 TeV at 95% C.L.engThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Journal articlehttp://dx.doi.org/10.1103/PhysRevLett.108.261803